what are the syptoms of a clogged cat, does it feel like no power and when you give it gas it doesent want to go faster? Also can the back pressure of a clogged cat make it sound sucking (blowing pressue).

Thanks

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i had a 99 astro van, the cat became clogged after 290,000 miles, i could go no faster than 40 mph floored, after running it you can take one of those IR temp meters and the temp should be really high or even glowing, basically, a major loss of power will happen

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Quote:

Originally Posted by koda6966

You could always paint a picture of Chuck Norris on your hood. Im sure that would give you about +220hp and +340 torque.